| Light Yagami vs King | 10–12 | 45.45% |
| Light Yagami vs Jin | 11–8 | 57.89% |
| Light Yagami vs Bryan | 12–4 | 75.00% |
| Light Yagami vs Law | 9–6 | 60.00% |
| Light Yagami vs Lidia | 10–3 | 76.92% |
| Light Yagami vs Hwoarang | 7–5 | 58.33% |
| Light Yagami vs Dragunov | 8–2 | 80.00% |
| Light Yagami vs Kazuya | 5–4 | 55.56% |
| Light Yagami vs Steve | 7–2 | 77.78% |
| Light Yagami vs Jun | 5–3 | 62.50% |
| Light Yagami vs Eddy | 6–2 | 75.00% |
| Light Yagami vs Clive | 5–3 | 62.50% |
| Light Yagami vs Paul | 2–5 | 28.57% |
| Light Yagami vs Yoshimitsu | 5–2 | 71.43% |
| Light Yagami vs Nina | 3–3 | 50.00% |
| Light Yagami vs Devil Jin | 2–3 | 40.00% |
| Light Yagami vs Reina | 1–4 | 20.00% |
| Light Yagami vs Asuka | 3–1 | 75.00% |
| Light Yagami vs Lili | 4–0 | 100.00% |
| Light Yagami vs Lars | 3–1 | 75.00% |
| Light Yagami vs Heihachi | 1–3 | 25.00% |
| Light Yagami vs Lee | 1–2 | 33.33% |
| Light Yagami vs Azucena | 3–0 | 100.00% |
| Light Yagami vs Victor | 1–1 | 50.00% |
| Light Yagami vs Raven | 1–1 | 50.00% |
| Light Yagami vs Xiaoyu | 0–1 | 0.00% |
| Light Yagami vs Jack-8 | 1–0 | 100.00% |
| Light Yagami vs Feng | 1–0 | 100.00% |
| Light Yagami vs Leo | 1–0 | 100.00% |
| Light Yagami vs Claudio | 0–1 | 0.00% |
| Light Yagami vs Kuma | 0–1 | 0.00% |
Limitations
This data is often requested to give insight into which characters you have more trouble with than others, but it is not particularly helpful for that. The main issue is that it is heavily skewed by how strong the opponents you play are.
For example, this data suggests my worst matchup is clearly vs Reina, but that's just because most of those games are vs Yagami.
There is a way to account for this being worked on. The central idea is to assign each matchup a rating vs you which adjusts based on the result, much like the regular rating but also based on the rating of each player. With this, it would give a better summary of how well you perform vs each character.
In the meantime, this page is here to present the data as requested.